Baking-machine.



j. W. MCGOWAN.

BAK|NG-MACH|NE- APPLICATION FILED JULY 18 l9l4 1 ,238,544. Patented Aug. 28, 1917.

l 3 SHEETS-SHEET l.

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Si? ll 1. w. MCGOW'AN.

BAKING wlAcHmEf APPLICATION FILED JULY 13| 1914.

Patented Aug. 28, 1917.

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J. W. McGOWA-N.

BAKING MACHINE. APPLICATION man 1uLY18.19|4.

1,238,544.. Patented Aug. 28, 1917.

'3 SHEETS-SHEET 3.

wi'ngooao 301 Md.

JAMES W. MGGOWAN, F SEAELTLE, WASHINGTON.

nannte-MACHINE.

Specification of Letters Patent.

Patented Aug. 28, 1917.

Application led July 18, 1914. Serial No. 851,806.

` baked product, and itconsists in the novel features and combinations -of parts as set forth in the Vfollowing' description and defined in the appended claims.

The primary'7 aim of the invention vis to provide an automatic baking machine which will produce, from a supply of batter or ,the like, molded shell-like articles or receptacles and discharge its products.

This and other objects I attain from the machine shown in its preferred embodiment in the accompanying drawings wherein:

.Figure 1 is a fragmentary top plan view of my baking machine.

Fig. 2 is a vertical cross sectional view thereof.

Fig. 3 is a top plan of Vone of the baking devices, parts being broken away to elucidate the construction thereof.

Fig. 4 discloses in vertical section, taken, about on line 4 4 of Fig.l3, the construction of the baking device.

Figs. 5 and 6 are crossV sectlonal vlews taken, respectively, on lines 5 5 and 6 6 of Fig. 3. 1 Fig. 7 is a fragmentary bottom plan view of one of the baking devices illustrating primarily the electrical connection.

Fig. 8 is a fragmentary longitudinal section of the batter feeding device. l

Figs. 9,v 10, 11 and 12 are transverse sectional views thereof taken on lines 9 9, 10-10, 11 11 and 12 '12, respectively,of Fig. 8, showing more in detail the construction ofthe feeding device.

Fi 13 is a longitudinal section of a modiied eeding device, parts being omitted and others shown in elevation,- and Fig. 14 is a transverse section on line 14-14 of Fig. 13.

Brieiiy Setting forth -the construction,

vthere are employed a rotating carrier for supporting a plurality of lsectional molds i y c c adapted to engagecamtra'ck 26 vhas into which the batter is discharged or fed,

. rality of means for freeing the baked products from the cores and molds, elevating the cores from the--molds,and separating the sections of vthe latter for depositing the baked products.

.Referring'by like characters of reference l to corresponding parts throughout the several views, 1 designates the base on which the carrier 2 is rotatably mounted, the guide rollers 3 of the base retaining the carrier from lateral displacement while ball bearings 4 interposed between the base and carrier in provided ball races reduce the friction during relative movement. \A peripheral rack 5 on the rim of carrier 2 meshes with a pinion 6 of transmission mechanism 7 through which the carrier is rotated.'

The baking devices comprise molds Sand cores 9, the latter being supported on heads 10 which extend outwardly from supports 11 slidable in vertical guides 12 of carrier 2. Each mold 8 comprises sections 8, 8",

* slidably mounted on ledges 13 of a containerl frame 14` and from each section depends a follower 15 for engaging in a cam slot 16 of actuator slide 17. The actuators are mounted in slots 14 of the frames 14 for sliding substantially radially of the carrieri 2 and have brackets 18 securedthereto which extend up, outwardly of said frames, andv turn inwardly over the mold sections, said inturned end portions 18 also being formed with cam slots 19 in which engage studs k20 projecting up from said sections.'-v Rods'21,y

guided in the frames'14, connect the actuators 17 to cross-head 22 whereby on outwardl movement of the latter, the actuators will' effect a sliding movement of the moldvs'ections in opposite directions to open the mold;l

Reverse movement of the'cross-head 22' will!` close the mold. L-shaped v guides 1-'23 on the mold sections engage the` inner ledge` 13 while rollers 24 mountedinthe frame4v14 are adapted to guide the outerfends ofthe mold sections, said rollersv and l`Lshapelguides being adjustable whereby they may be set subsequent to the initialgheatingl of the3 baking devices to make "allowance for expansion of the elements. y

A follower 25,"on each crosshe'ad 422. is

draw and thrustportions for opening and closing the mold sections.

Core support 11 is provided with a roller 27 for riding on cam track 28 for raising and lowering the cores 9 from the molds 8.

Cam track 28, which i-s supported on base 1, is composedof a slightly inclined or raised section 28, which I term the pull or dislodging section, an elevating or removal section 28'?, an elevated rest section 28 and an abrupt lowering section 28d.

`relation to the delivery openings 33, while slidable on the tube are plungers arranged ,in alternation with the partition walls 34. Plungers 35 are secured to a valve 36 for; simultaneous movement, said valve being slidable in casing 37, which extends inwardly from the bearing 30, and is provided with exhaust ports 38` adapted for registration with the delivery ports 39 of said casing. Openings 33, which are normally unobstructed, are closed by the 'sliding plungers, serving as cut-offs, priorto ports 38 and 39 coming'in reistering relation to thereby eect a quick discharge of the batter into the continuously moving molds. To relieve the essure behind the interposed plungers 35- .provide registrable air openings 40 in thevalve 36 and casing 37. The

, valve extends into the bearing 30 andcarries an interna-l collar 41 against which one end of a coiled spring 4 2 bears, the opposite end receiving support from collar 43 which is held fixed by screws 44 passing throu h slots 45 of the valve from the bearing. operating lever 46,l fulcrumed at 47 on standard 31, has its upper end projectingthrough a slot in casing 37 andmormally en- -gaging the adjacent plunger for sliding the valve 36 and operating the plungers 35.

The lower end of lever 46 is adapted to be lengaged by the cam faces 48 of cross-heads 22 for operating said lever.

The operation ofthe machine thusfar dethe cores are lowered quickly into the molds by roller 27 riding down the abrupt cam track section 28d. The batter is baked during the annular course taken by the baking device. Immediately prior to follower 25 entering cam track 26, roller 27 begins its ride up the dislodging section 28 of track 2S. This slight raise of the cores loosens the same from the baked product but permits of the cores remaining the shelllke product to aid in freeing the latter from the sections of the mold, which are now starting to separate or open by follower 25 engaging in track 26, should it adhere to one of the sections. Roller 27 then rides up track section 28" to elevate the cores to permit of a recharge of batter while the mold sections open to deposit the baked product and then close prior to the roller 27 reaching the rest section 28. The mold, continuing its movement, travels beneath the feeding device which is operated by cam 48 coming into enngement with the lever 46, as above set fort The modified form of batter feeding de vice shown in 13 and 14 comprises a batter supply tube 49, a valve 50 slidable thereon and arranged within the ca 51, and fluid or air supply manifold 52 aving a series of conduits 53 opening into the casing 51. Tube 49 has discharge open ings 54 normally opening into compartments 55 of valve 50 and adapted to be closed by the latter on bringing the ports 56 of the valve into commlmication with the ports 57 of the casing 51. Valve 50 also has conduits 58 opening into the compartments 55 which are adapted to communicate with conduits 53 when the ports 56 and 57 are in registering relation for admitting air pressure into said compartments to expel the batter- Casing 51 is supported from bearing 30 about which spring 42 coils to retract the valve to its normal position.

The heat for baking1 is produced by electric heating units comprising, in their simscribed will now be set forth ina manner. y

The batter feeding device being mounted so as to come between the molds and elevated cores, as shown at'the left in. F1g.,2, the cam of cross-head 22 engages lever 46 for operating the plungers 35 and valve36. As the molds pass-beneath ports'39, the batter is discharged thereinto vand imme-A l, iately upon clearing the feeding device.

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plest form, spaced supporting bars 59 and heating coils 60 insulated therefrom by insulators 61. A heating unit is arranged in each mold section and in each core head 10.

Centrally arranged wit-hin carrier 2 is a. tubular support 62 from' the upper end of which' radial conduits 63 extend to the rim of the carrier. A table 64 supported by bracket arms 65 of base 1 carries a cupped contact bearin 66 in which seats a ball contact member 6 insulated from but carried by the tubular support 62. The ball con'-,

a horizontal bar from thev .opposite sides ofwhlch extend threaded studs 68. Clampi lates 69 are secured against the horizon ar'by nuts'70 on studs 68 forfastening the proper wires' to the ball contact-67. The

4tact 67 is formed at its upper portion into 68 extend aperturesin tubular 130 support G2 for supporting the contact. A lead 71 is connected to the contact bearing 66 while the companion lead 72 is metallically connected to a contact annulus 73 supported on the table 64. A brush 74 on support 62 Wipes annulus 73 and has the respective Wires connected thereto by clamping plates 75.

The current Wires 7 6 .pass through the radial conduits 63 to the heating units, those/ being connected to the core units having snllicientslack to permit of raising and lowering the cores. Int'rposed between the container frames 14 are pairs of insulators 7 7 mounted in suitable apertures in said :t1-ames. The wires 76, leading to the mold heating units, are connected to binding posts -78 of insula-tors77. Terminal rods 79 eX- tend inwardly from the opposite sides of the insulators 77 beneath the mold sections, while the latter carry depending apertured terminals 80 connected to the respective heating units and each having slidable engagement with the respective rodl l7 9 to permit of opening the mold sections.

The foregoing detailed description has been given for clearness of understanding only, and no undue limitation is to be un. derstood therefrom, but the appended claims are to be construed as broadly as isv permissible in view of the prior art.

Having thus described my invention, what I claim as new, and desire to secure by Letters .Patent of the United States of America, 1s z v l. In a baking machine, a rotatable cylindrical carrier vertically slotted,a sectional mold mounted on the outside thereof for slidingopening` movement, a core having a partengaging in and projecting through the slot of t-he carrier for movement therein, and means arranged within the cylindrical carrier and inthe path of the projecting part of the core for elevating the latter from between the mold sections.

2. In a` baking machine, a rotatable. cylindrical carrier provided with avertical slot, a sectional mold comprising sections mounted on the exterior of the carrier for tangential sliding movement in opening, a core having a part slidably engaging in and projecting through the slot of the carrier,

means arranged Within the cylindrical carrier to be housed thereby and in the path of the projecting part of the core for sliding the same vertically in said carrier slot, and means' arranged outside of the carrier in the path of -the mold sections for opening the latter. v,

3. In a baking machine, a cylindrical carrier rotatably supported on end and formed with a'peripheral series of slots, a core eX- tending from the carrier and havin a part slidably engaged in each slot thereo a cam track arranged Within the carrier and in the path of. the core parts projecting through Y the carrier slots to slide the former in the latter, a plurality of container frames carriedv by Vthe carrier beneath the cores, asectional mold mounted in each frame for sliding opening movement, and means arranged in the path of the mold sections for sliding the same in the container frames.

4. In a baking machine, a rotatable cyli drical carrier provided with a vertical slot and opposing guides at the opposite edges of the slot, a mold on the carrier, a coperating core for the mold, a core support slidable in the guides and eXtendin` through the carrier slot, and means for s iding the support in its guides.

5. In a machine `of the character described, av vertically slotted cylindrical support, a mold carried thereby and compris- 'ing laterally separable sections, a core slidably1 mounted inthe slot of the support and projecting into the mold between the separable sections, a cam track arrangedrwithin the cylindrical support for coperation with the core and consisting of the slight raise section and an abrupt raise section connected therewith, the slight raise section being adapted for effecting a raise of the core from contact with the'molded product but not entirely from projecting therein, and the abrupt raise section being adapted for effecting the entire removal of the core from Within the mold, and a second cam track arranged for-elfectinga separation of the mold sections, said second track starting at a point `between the commencement of the slight raise section and the commencement of the abrupt raise section of., the first track.

Signed at Seattle, Washington this 4th day of May 1914. l

JAMES W. MoGOWAN. Witnesses:

C. E. LONG, I-I. M. Bnooxs. 

